1Up reports on
Microsoft's hopes that the release of Grand Theft Auto IV for Windows in
November will revitalize (or perhaps vitalize) the
Games
for Windows program, which has not exactly set the world on fire since its
launch two years ago. Word is the release of the PC edition of Rockstar's
open-world action game will offer "a revitalized Games for Windows Live
experience" with the inclusion of a separate Games for Windows client and a game
marketplace. There are no further details on planned enhancements to the GFW
program beyond an ability to sell games directly.

Frankly if you've been forced to use mods to multiplay GTA on the PC in the past then I think anything would be an upgrade at this point.

no kidding... I realize coding those mods is very difficult work but it would definitely help if the teams had developers who knew what the fuck they were doing (like not letting random morons have source code access)